2021-02-16 17:26:40 +00:00
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#include <string>
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2021-02-22 03:16:05 +00:00
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#include <cstring>
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2021-02-16 17:26:40 +00:00
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#include <cstdio>
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#include <vector>
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2024-05-09 05:25:53 +00:00
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#include <libreborn/libreborn.h>
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2021-09-12 03:18:12 +00:00
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#include <symbols/minecraft.h>
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2021-02-16 17:26:40 +00:00
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2022-06-25 21:30:08 +00:00
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#include <mods/init/init.h>
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#include <mods/feature/feature.h>
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#include "chat-internal.h"
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#include <mods/chat/chat.h>
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2021-02-16 17:26:40 +00:00
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// Send API Command
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2024-01-06 11:30:23 +00:00
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std::string chat_send_api_command(Minecraft *minecraft, std::string str) {
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2024-04-03 07:19:12 +00:00
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ConnectedClient client;
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2021-02-16 17:26:40 +00:00
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client.sock = -1;
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client.str = "";
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client.time = 0;
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2024-01-06 11:30:23 +00:00
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CommandServer *command_server = minecraft->command_server;
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2024-04-02 23:22:01 +00:00
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if (command_server != nullptr) {
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2024-05-15 09:02:19 +00:00
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return command_server->parse(&client, &str);
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2022-06-27 01:17:52 +00:00
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} else {
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return "";
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2021-02-16 17:26:40 +00:00
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}
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}
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2022-06-27 01:17:52 +00:00
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2021-02-16 17:26:40 +00:00
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// Send API Chat Command
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2024-01-06 11:30:23 +00:00
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static void send_api_chat_command(Minecraft *minecraft, char *str) {
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2024-04-02 23:22:01 +00:00
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char *command = nullptr;
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2021-06-17 21:32:24 +00:00
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safe_asprintf(&command, "chat.post(%s)\n", str);
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2022-06-27 01:17:52 +00:00
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chat_send_api_command(minecraft, command);
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2021-02-16 17:26:40 +00:00
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free(command);
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}
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// Send Message To Players
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2024-02-02 09:20:34 +00:00
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std::string _chat_get_prefix(char *username) {
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return std::string("<") + username + "> ";
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}
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2024-01-06 11:30:23 +00:00
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void chat_send_message(ServerSideNetworkHandler *server_side_network_handler, char *username, char *message) {
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2024-04-02 23:22:01 +00:00
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char *full_message = nullptr;
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2024-02-02 09:20:34 +00:00
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safe_asprintf(&full_message, "%s%s", _chat_get_prefix(username).c_str(), message);
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2021-02-22 03:51:01 +00:00
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sanitize_string(&full_message, MAX_CHAT_MESSAGE_LENGTH, 0);
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2024-01-06 11:30:23 +00:00
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std::string cpp_string = full_message;
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2021-02-16 17:26:40 +00:00
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free(full_message);
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2024-05-15 09:02:19 +00:00
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server_side_network_handler->displayGameMessage(&cpp_string);
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2021-02-16 17:26:40 +00:00
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}
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2022-06-27 01:17:52 +00:00
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// Handle Chat packet Send
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2024-01-06 11:30:23 +00:00
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void chat_handle_packet_send(Minecraft *minecraft, ChatPacket *packet) {
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RakNetInstance *rak_net_instance = minecraft->rak_net_instance;
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2024-05-15 09:02:19 +00:00
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if (rak_net_instance->isServer()) {
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2022-06-27 01:17:52 +00:00
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// Hosting Multiplayer
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2024-03-18 23:44:17 +00:00
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const char *message = packet->message.c_str();
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2024-01-06 11:30:23 +00:00
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ServerSideNetworkHandler *server_side_network_handler = (ServerSideNetworkHandler *) minecraft->network_handler;
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2024-05-17 06:52:55 +00:00
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chat_send_message(server_side_network_handler, Strings::default_username, (char *) message);
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2022-06-27 01:17:52 +00:00
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} else {
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// Client
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2024-05-15 09:02:19 +00:00
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rak_net_instance->send((Packet *) packet);
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2022-06-27 01:17:52 +00:00
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}
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}
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2021-02-16 17:26:40 +00:00
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// Manually Send (And Loopback) ChatPacket
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2024-01-06 11:30:23 +00:00
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static void CommandServer_parse_CommandServer_dispatchPacket_injection(CommandServer *command_server, Packet *packet) {
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Minecraft *minecraft = command_server->minecraft;
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2024-04-02 23:22:01 +00:00
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if (minecraft != nullptr) {
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2024-01-06 11:30:23 +00:00
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chat_handle_packet_send(minecraft, (ChatPacket *) packet);
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2021-02-16 17:26:40 +00:00
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}
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}
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// Handle ChatPacket Server-Side
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2024-01-06 11:30:23 +00:00
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static void ServerSideNetworkHandler_handle_ChatPacket_injection(ServerSideNetworkHandler *server_side_network_handler, RakNet_RakNetGUID *rak_net_guid, ChatPacket *chat_packet) {
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2024-05-15 09:02:19 +00:00
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Player *player = server_side_network_handler->getPlayer(rak_net_guid);
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2024-04-02 23:22:01 +00:00
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if (player != nullptr) {
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2024-01-06 11:30:23 +00:00
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const char *username = player->username.c_str();
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2024-03-18 23:44:17 +00:00
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const char *message = chat_packet->message.c_str();
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chat_send_message(server_side_network_handler, (char *) username, (char *) message);
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2021-02-16 17:26:40 +00:00
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}
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}
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2024-05-09 05:25:53 +00:00
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// Send Message
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void _chat_send_message(Minecraft *minecraft, const char *message) {
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send_api_chat_command(minecraft, (char *) message);
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2021-02-16 17:26:40 +00:00
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}
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// Init
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void init_chat() {
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2024-02-01 08:12:24 +00:00
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if (feature_has("Implement Chat", server_enabled)) {
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2021-07-04 23:02:45 +00:00
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// Disable Original ChatPacket Loopback
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unsigned char disable_chat_packet_loopback_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
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patch((void *) 0x6b490, disable_chat_packet_loopback_patch);
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// Manually Send (And Loopback) ChatPacket
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overwrite_call((void *) 0x6b518, (void *) CommandServer_parse_CommandServer_dispatchPacket_injection);
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// Re-Broadcast ChatPacket
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2024-05-05 00:46:15 +00:00
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patch_vtable(ServerSideNetworkHandler_handle_ChatPacket, ServerSideNetworkHandler_handle_ChatPacket_injection);
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2024-02-01 08:12:24 +00:00
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// Init UI
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_init_chat_ui();
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2024-02-02 09:20:34 +00:00
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// Disable Built-In Chat Message Limiting
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unsigned char message_limit_patch[4] = {0x03, 0x00, 0x53, 0xe1}; // "cmp r4, r4"
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patch((void *) 0x6b4c0, message_limit_patch);
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2021-07-04 23:02:45 +00:00
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}
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}
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